Loud Sound: 125dB alarm sound. When the door is opened, an alarm will sound immediately to deter and frighten, wake up/remind the owner or tenant, stop the intruder and notify the neighbor for safety protection. Non-Slip Door Stop: When the door stop alarm is in the "closed" state, it can be used as a common rubber-based damping door wedge. The suction cup is designed with a shock-absorbing primer, which has strong adhesion and fits tightly without shifting. Stainless Steel: Stainless steel door stop surface, durable and pressure-resistant, without damaging the alarm due to strong external force. Whether it is tile, concrete or wooden floors, these door wedges will prevent your door from moving. Portable: small and exquisite, easy to carry, convenient for temporary fixing of the door hotel. Very suitable for bedrooms, hotels, apartments, dormitories, front doors, etc. Feel comfortable when traveling or working alone. Simple operation: The door block can be used when the battery is